Support new graalpy asset names that include Python version. (#2863)

* Support new graalpy asset names that include Python version

* Slight readability improvement for graalpy asset regex

bin/update_pythons.py

@@ -124,14 +124,22 @@ class GraalPyVersions:
         response.raise_for_status()
 
         releases = response.json()
-        gp_version_re = re.compile(r"-(\d+\.\d+\.\d+)$")
+        gp_asset_re = re.compile(
+            r"^(?P<prefix>graalpy(?P<cpython>\d+\.\d+)?-(?P<graalpy>\d+\.\d+\.\d+))-"
+        )
         cp_version_re = re.compile(r"Python (\d+\.\d+(?:\.\d+)?)")
         for release in releases:
-            m = gp_version_re.search(release["tag_name"])
-            if m:
-                release["graalpy_version"] = Version(m.group(1))
-            m = cp_version_re.search(release["body"])
-            if m:
+            for asset in release["assets"]:
+                m = gp_asset_re.match(asset["name"])
+                if m:
+                    release["asset_prefix"] = m.group("prefix")
+                    release["graalpy_version"] = Version(m.group("graalpy"))
+                    if m.group("cpython"):
+                        release["python_version"] = Version(m.group("cpython"))
+                    break
+            if "python_version" not in release and (
+                m := cp_version_re.search(release["body"] or "")
+            ):
                 release["python_version"] = Version(m.group(1))
 
         self.releases = [r for r in releases if "graalpy_version" in r and "python_version" in r]
@@ -172,12 +180,11 @@ class GraalPyVersions:
         ext = "zip" if "win" in identifier else "tar.gz"
         for release in reversed(releases):
             version = release["python_version"]
-            gpversion = release["graalpy_version"]
             urls = [
                 rf["browser_download_url"]
                 for rf in release["assets"]
                 if rf["name"].endswith(f"{platform}-{arch}.{ext}")
-                and rf["name"].startswith(f"graalpy-{gpversion.major}")
+                and rf["name"].startswith(release["asset_prefix"])
             ]
             if not urls:
                 continue